Person:
Abowd, Gregory D.

Permanent Link
https://hdl.handle.net/1853/71042
Associated Organization(s)
Organizational Unit
ORCID
ArchiveSpace Name Record

Filters

2000 - 2001 3
2 1
3
3
3
3
Reset filters

Settings
Author: Dey, Anind K. × End date: 2001 × Start date: 2000 ×

Publication Search Results

Now showing 1 - 3 of 3
  • Thumbnail Image
    Item
    The Family Intercom: Developing a Context-Aware Audio Communication System
    (Georgia Institute of Technology, 2001) Nagel, Kristine Susanne ; Kidd, Cory D. ; O'Connell, Thomas ; Dey, Anind K. ; Abowd, Gregory D.
    We have begun an exploration of how ubiquitous computing technology can facilitate different forms of audio communication within a family. We are interested in both intra- and inter-home communication. Though much technology exists to support this human-human communication, none of them make effective use of the context of the communication partners. In the Aware Home Research Initiative, we are exploring how to augment a domestic envi-ronment with knowledge of the location and activities of its occupants. The Family Intercom project is trying to explore how this context can be used to create a variety of lightweight communication opportunities between collo-cated and remote family members. It is particularly important that context about the status of the callee be communicated to the caller, so that the appropriate social protocol for continuing a conversation can be performed by the caller. In this paper, we will discuss our initial prototypes to develop a testbed for exploring these context-aware audio communication services.
  • Thumbnail Image
    Item
    Distributed Mediation of Imperfectly Sensed Context in Aware Environments
    (Georgia Institute of Technology, 2000) Dey, Anind K. ; Mankoff, Jennifer C. ; Abowd, Gregory D.
    Current context-aware services make the assumption that the context they are dealing with is correct. However, in reality, both sensed and interpreted context is often imperfect. In this paper, we describe an architecture that supports the building of context-aware services that assume context is imperfect and allows for the refinement of this imperfect context by mobile users in aware-environments. We discuss the architectural mechanisms and design heuristics that arise from supporting this refinement over space and time. We illustrate the use of our architecture and heuristics through two example context-aware services, an In-Out Board for the home and a situation-aware reminder tool.
  • Thumbnail Image
    Item
    Securing Context-Aware Applications Using Environment Roles
    (Georgia Institute of Technology, 2000) Covington, Michael J. ; Long, Wende ; Srinivasan, Srividhya ; Dey, Anind K. ; Ahamad, Mustaque ; Abowd, Gregory D.
    In the future, a largely invisible and ubiquitous computing infrastructure will assist people with a variety of activities in the home and at work. The applications that will be deployed in such systems will create and manipulate private information and will provide access to a variety of other resources. Securing such applications is challenging for a number of reasons. Unlike traditional systems where access control has been explored, access decisions may depend on the context in which requests are made. We show how the well-developed notion of roles can be used to capture security-relevant context of the environment in which access requests are made. By introducing environment roles, we create a uniform access control framework that can be used to secure context-aware applications. We also present a security architecture that supports security policies that make use of environment roles to control access to resources.